Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['3579', '6393', '7727', '9373', 'S', '8837']

3579, 6393, 7727, 9373, 19, 8837